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H. P. BURST. AGGBLERATING CARTRIDGE.

No. 562,535. Patented June 23, 1896.

FIZ/VESSEL? UNITED STATES HARRIs P. nunsr, oF

PATENT OFFICE.

SUMMIT, MISSISSIPPI.

CCELERATING CARTRIDGE.

SPECIFICATION forming part of Letters Patent No. 562,535, dated .T une 23, 1896.

'Application iiled March 28, 1892.

To n-Z whom, it may] concern,.-

le it known that I, HARRIS I. IIURST, f the town of Summit, county of Iike, -and State of Mississippi, have inventedv a new and useful Improvement in Cartridges; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a longitudinal section of my cartridge. Fig. E. is also a longitudinal seciion of my cartridge with an aerial torpedo as the projectile for smooth-bore guns. AFig. 3 is a longitudinal section of a projectile (shell) for rifled guns. Fig. 4 is a longitudinal View of projectile, and Fig. 5 of the base-piece, with rear extension, for use with the projectile. Fig. (5 is a longitudinal sectional View of a projectile with the separating column or tube without the base-piece. Figs. '7, Y8, and I) are end views of projectiles. Y

y Similar letters of reference indicate 'correspending parts.

My accelerating cartridge has a case of paper, brass, or other suitable material, and secured to the head A is a tube B, containing the primary charge C, which may be placed wholly or in part in the rea-r extension D of the base-piece E or projectile E, and the secondary or main or accelerating charge G oe- `cupies the annular space Within the out-er ease and surrounding the inner tube BL The projectile E' may be attached to the base-piece E or column or tube D."in any suitable manner-as, for instance, by the shock of the explosion When red, Figs. 4 and 5, the two being tted tight and when fired driven together, so as to remain securely affixed as if made of one piece-and the base-piece E may take the place of or carry the rotating band of the projectile, dotted lines, Fig. 5, or the projectile may have secured to it or integral with it the extension or separating column D D, and when used with smooth-bore guns the projectile has the rear extension D provided with fins or rotating Wings I-I, and in this ease a heavy wad or metal disk I is placed over the 'primary charge C, and the wad or disk I is intended to drop off when the prowill be released by the rearward pressure of the gas in chamber e, or the pin i maysecure the projectile till it is sheared oit in firing and the air pressure separate them, or a spring may be interposed between the base-I piece and projectile; but I do not claim this last-mentioned device for releasing the base# piece, as I am aware it has already been patented by Joseph R. Hawley, of Hartford, Connecticut.

In Fig. 3 I show a shell with a base-fuse to explode or detonate the bursting charge therein. The rear end of this shell inelines inwardly behind the rotating band.

The manner of loading my cartridge. is as follows: 'Ilie cartridge has in its head the usual primer m inserted and communicates through channel n to the primary I charge, which may be entirely within the hollow eX- tension of the projectile or base-piece, the rear end being reamed outuntil a sharp thin gascheck ois formed, and the main charge, being entirely separated thereby, is not fired until the projectile is Well underway and only when the rear of the gas-check o is free from the in ner tube. An annular disk or wad .5' may be placed over the main charge.

Many modifications can be made withoutdep'arting from the scope of my inventionthe subcaliber rear extension of the basepiece, Fig. 5, being omitted when the projectile, Fig.. 4:, is used in single-chargedguns, 'and the independent base-piece may be arranged 'to be stored in separate pieces and then attach'ed, when used, to any class of projectiles and shells in any suitable manner, as by an overlapping joint, the separate base -piece being adapted to any number of purposes. I do not wish to limit myself to any form of construction or mode or manner of putting bascpiece and forward body of projectile or shell together when used.

I do not claim, broadly, in this application the projectile having the elongated rear eX- tension-piecc, nor the said projectile provided with a rotating base-piece, nor the projectile having its rear extension-body separate therefrom, nor the projectile having the elongated rear extension-body and means for preventing the forward iioW of gas from the primary to the main charge, nor the'projectilc having a hollow rear extension-bod y, nor the projectile having a hollow rear extension-body constructed' to receive a propelling charge, n or a projectile carrying an elongated rear portion of reduced diameter constructed to telescope with' a charge-containing chamber, nor a car-l tridge with a tube screwed through its head.

I claii'n- 1. A cartridge having a tube containing the primary charge and a main charge outside of said tube, and a separating-body in the tube extending forward to and attachable to the projectile, substantially as described.

2. A cartridge having secured to its base a tube for the primary charge, an accelerating charge without said tube and an independent body in the tube, attaehable tothe projectile, between the projectile and primary charge, and separating the same from the main charge until the projectile is in motion from firing the prilnary charge, substantially as described.

A cartridge having the inner primarycharge-containing chamber surrounded by the accelerating charge and separated therefrom by the attachable subcaliber extensionbody of the projectile, substantially as dc scribed.

4. A cartridge having the inner primarycharge tube, the main charge without said tube and the projectile with its subcaliber rear extension-body provided with rotating wings, separating the two charges, substantially as described.

5. A cartridge having the primary and main charge chambers and the projectile with its subcaliberrear extension provided with rotating 'wings separating said charges, until fired, and a disk between said rotating wings and said primary charge, substantially as' described.

G. lA cartridge having a primary-chargecontaining chamber, and, in the annular space aboutit, the main charge held in place by a ring, s, and the head of the projectile forward thereof, substantially as described.

7. A projectile having a separate body for its base, as E, substantially as described, and an attachable forward body and means to unite and secure said base-piece to the l'or- ,ward body portion of the proj eetilc, substantially as described.

8. A projectile having an elongated subcaliber rear extension-body, said rear extension-body constructed io be driven onto the projectile, when fired, and al'iixed tlieretoby the explosion, substantially as described.

j 9. A projectile having an independent body for its base, as E, substantially as described, 7c and separate therefrom and attached, when used, to the forward body ot the project-ile, substantially as described. y

10.- A projectile carrying a rcarextensionbody and a chamber between said projectile and said extension-body having a separating charge therein, substantially as described.

11. A projectile having a separable body for its base, as E, carryingtherecn the rotating band and a forward body attached 1.o said So base-piece in front of said rotating band, substantially as described.

l2. A projectile composed of two separate parts, a'base-piece, as E, carrying the rotatv ing band and the forward body portion, when S 5 used, joined to said base-piece, substantially as described.

A projectile composed of two indepinnlent separate parts, a forward body and a rearward body, said rearward bod)r having an oo elongated subcaliber rear extensionl pim-e, and means to unite the two bodies permanently by the shock of the explosion, substantially as described. l

14. A hollow projectile for. the burst ingl o 5 charge therein, the rotating band thereon and the subcaliber hollow rear exienson at the base thereof, substantially as described.

15. vA projectile provided with a rotating band and havinga subcaliber rear extension- 1o@ body, the base of said projectile, behind the rotating band,- inclining inwardly, substantially as described.

11G. A projectile having a separable body for its base-piece and a subcaliber extension extending rearward therefrom, and a forward body and means to imite the two bodies, substantially as described.

.17. A projectile provided with aseparable body for its base having at the rear thereof a i 1o subcaliber extension-piece, and a forward body and means to unite the two together, the rearward body carrying the rotating band substantially as described.

In testimony whereof I affix my signature i 15 in presence of two witnesses.

' HARRIS l. lllTRST. l'Vi tnesses:

FRANCK L. Oum-mn,

HARVEY lV. .DE GAw. 

